{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-27837", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-02-24T02:32:39.801Z", "datePublished": "2026-02-26T00:19:24.289Z", "dateUpdated": "2026-02-26T00:19:24.289Z"}, "containers": {"cna": {"title": "Dottie vulnerable to prototype pollution bypass via non-first path segments in set() and transform()", "problemTypes": [{"descriptions": [{"cweId": "CWE-1321", "lang": "en", "description": "CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 6.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L", "version": "3.1"}}], "references": [{"name": "https://github.com/mickhansen/dottie.js/security/advisories/GHSA-r5mx-6wc6-7h9w", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/mickhansen/dottie.js/security/advisories/GHSA-r5mx-6wc6-7h9w"}, {"name": "https://github.com/mickhansen/dottie.js/commit/7e8fa1345a4b46325f0eab8d7aeb1c4deaefdb14", "tags": ["x_refsource_MISC"], "url": "https://github.com/mickhansen/dottie.js/commit/7e8fa1345a4b46325f0eab8d7aeb1c4deaefdb14"}, {"name": "https://github.com/advisories/GHSA-4gxf-g5gf-22h4", "tags": ["x_refsource_MISC"], "url": "https://github.com/advisories/GHSA-4gxf-g5gf-22h4"}], "affected": [{"vendor": "mickhansen", "product": "dottie.js", "versions": [{"version": ">= 2.0.4, < 2.0.7", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-02-26T00:19:24.289Z"}, "descriptions": [{"lang": "en", "value": "Dottie provides nested object access and manipulation in JavaScript. Versions 2.0.4 through 2.0.6 contain an incomplete fix for CVE-2023-26132. The prototype pollution guard introduced in commit `7d3aee1` only validates the first segment of a dot-separated path, allowing an attacker to bypass the protection by placing `__proto__` at any position other than the first. Both `dottie.set()` and `dottie.transform()` are affected. Version 2.0.7 contains an updated fix to address the residual vulnerability."}], "source": {"advisory": "GHSA-r5mx-6wc6-7h9w", "discovery": "UNKNOWN"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "Dottie provides nested object access and manipulation in JavaScript. Versions 2.0.4 through 2.0.6 contain an incomplete fix for CVE-2023-26132. The prototype pollution guard introduced in commit `7d3aee1` only validates the first segment of a dot-separated path, allowing an attacker to bypass the protection by placing `__proto__` at any position other than the first. Both `dottie.set()` and `dottie.transform()` are affected. Version 2.0.7 contains an updated fix to address the residual vulnerability."}], "id": "CVE-2026-27837", "lastModified": "2026-02-26T01:16:24.937", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 6.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.4, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-02-26T01:16:24.937", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/advisories/GHSA-4gxf-g5gf-22h4"}, {"source": "security-advisories@github.com", "url": "https://github.com/mickhansen/dottie.js/commit/7e8fa1345a4b46325f0eab8d7aeb1c4deaefdb14"}, {"source": "security-advisories@github.com", "url": "https://github.com/mickhansen/dottie.js/security/advisories/GHSA-r5mx-6wc6-7h9w"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-1321"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{}